BIO 107 EXAM 3 QUESTIONS
AND ANSWERS
What is a telomere? - Answer-the end of a linear eukaryotic chromosome
Which of the following is NOT a step in DNA replication? - Answer-Verification
The leading and lagging strands differ in that: - Answer-the leading strand is
synthesized in the same direction as the movement of the replication fork, and the
lagging strand is synthesized in the opposite direction
After telophase I of meiosis, the chromosomal makeup of each daughter cell is -
Answer-haploid, and the chromosomes are each composed of two chromatids
Somatic cells of roundworms have four have four individual chromosomes per cell. How
many chromosomes would you expect to find in the egg cell from a roundworm? -
Answer-two
What is the final result of mitosis in humans? - Answer-genetically identical 2n somatic
cells
A gene for hair color (brown vs. blond) and a gene for finger length (long vs. short) are
found on two different chromosomes. If a mother is homozygous for blond hair color and
homozygous for short finger length, what is the probability that she passes along the
preference for her son to have blond hair and short fingers? - Answer-100%
Which of the following occurs during Metaphase I of meiotic cell division? - Answer-
Pairs of homologous chromosomes line up at the center of the cell
The term for the joining together of homologous chromosomes during Prophase I of
meiosis is which of the following? - Answer-Synapsis
In eukaryotic cells, condensed chromosomes are composed of - Answer-DNA and
proteins
5'- TAGTCTACAG -3'
3'- ATCAGATGTC -5'
AND ANSWERS
What is a telomere? - Answer-the end of a linear eukaryotic chromosome
Which of the following is NOT a step in DNA replication? - Answer-Verification
The leading and lagging strands differ in that: - Answer-the leading strand is
synthesized in the same direction as the movement of the replication fork, and the
lagging strand is synthesized in the opposite direction
After telophase I of meiosis, the chromosomal makeup of each daughter cell is -
Answer-haploid, and the chromosomes are each composed of two chromatids
Somatic cells of roundworms have four have four individual chromosomes per cell. How
many chromosomes would you expect to find in the egg cell from a roundworm? -
Answer-two
What is the final result of mitosis in humans? - Answer-genetically identical 2n somatic
cells
A gene for hair color (brown vs. blond) and a gene for finger length (long vs. short) are
found on two different chromosomes. If a mother is homozygous for blond hair color and
homozygous for short finger length, what is the probability that she passes along the
preference for her son to have blond hair and short fingers? - Answer-100%
Which of the following occurs during Metaphase I of meiotic cell division? - Answer-
Pairs of homologous chromosomes line up at the center of the cell
The term for the joining together of homologous chromosomes during Prophase I of
meiosis is which of the following? - Answer-Synapsis
In eukaryotic cells, condensed chromosomes are composed of - Answer-DNA and
proteins
5'- TAGTCTACAG -3'
3'- ATCAGATGTC -5'
